<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>跨行跨列</title>
</head>
<body>
<table border="1" width="1000" height="500">
  <caption>课程表</caption>
  <thead>
  <tr>
    <th>1</th>
    <th>1</th>
    <th>1</th>
    <th>1</th>
    <th>1</th>
    <th>1</th>
    <th>1</th>
    <th>1</th>
    
  </tr>
  </thead>
  <tbody>
  <tr>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    <td>1</td>

  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>

  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>

  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>

  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>

  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>

  </tr>
  <tr>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>
    <td></td>

  </tr>
  </tbody>
</table>
</body>
</html>